Sharif takes Zeno’s elbow as they ascend. The entrance to the second story has been blocked with a plywood wall spray-painted gold, and in its center, over a small arched door, Zeno has written:

Ὦ ξένε, ὅστις εἶ, ἄνοιξον, ἵνα μάθῃς ἃ θαυμάζεις

The fifth graders cluster against the plywood and snow melts on their jackets and backpacks and everyone looks at Zeno and Zeno waits for his breath to catch up with the rest of him.

“Does everyone remember what it says?”

“Of course,” says Rachel.

“Duh,” says Christopher.

On her tiptoes, Natalie runs a finger beneath each word. “Stranger, whoever you are, open this to learn what will amaze you.”

“Oh my flipping gosh,” says Alex, his donkey head under his arm. “It’s like we’re about to walk into the book.”

Sharif switches off the stairwell light and the children crowd around the little door in the red glow of the EXIT sign. “Ready?” calls Zeno, and from the other side of the plywood, Marian, the library director, calls, “Ready.”

One by one the fifth graders pass through the little arched doorway into the Children’s Section. The shelves, tables, and beanbags that normally fill the space have been pushed against the walls and in their places stand thirty folding chairs. Above the chairs, dozens of cardboard clouds, coated with glitter, hang from the rafters by threads. In front of the chairs is a small stage, and behind the stage, on a canvas sheet hung across the entire rear wall, Marian has painted a city in the clouds.

Golden towers, cut by hundreds of little windows and crowned by pennants, rise in clusters. Around their spires whirl dense flights of birds—little brown buntings and big silver eagles, birds with long curving tails and others with long curving bills, birds of the world and birds of the imagination. Marian has shut off the overhead lights, and in the beam of a single karaoke light on a stand, the clouds sparkle and the flocks shimmer and the towers seem illuminated from within.

“It’s—” says Olivia.

“—better than I—” says Christopher.

“Cloud Cuckoo Land,” whispers Rachel.

Natalie sets down her speaker and Alex leaps onstage and Marian calls, “Careful, some of the paint may still be wet.”

Zeno lowers himself into a chair in the front row. Every time he blinks, a memory ripples across the undersides of his eyelids: his father pratfalls into a snowbank; a librarian slides open the drawer of a card catalogue; a man in a prison camp scratches Greek characters into the dust.

Sharif shows the kids the backstage area that he has created behind three bookshelves, packed with props and costumes, and Olivia pulls a latex cap over her hair to make herself look bald and Christopher drags a microwave box painted to look like a marble sarcophagus to the center of the stage and Alex reaches to touch a tower of the painted city and Natalie slides a laptop from her backpack.